In every moment of her duration Nature is one connected whole; in every moment each individual part must be what it is, because all the others are what they are; and you could not remove a single grain of sand from its place, without thereby, although perhaps imperceptibly to you, altering something throughout all parts of the immeasurable whole. But every moment of this duration is determined by all past moments, and will determine all future moments; and you cannot conceive even the position of a grain of sand other than it is in the Present, without being compelled to conceive the whole indefinite Past to have been other than what it has been, and the whole indefinite Future other than what it will be. Make the experiment, for instance, with this grain of quick-sand. Suppose it to lie some few paces further inland than it does:—then must the storm-wind that drove it in from the sea have been stronger than it actually was;—then must the preceding state of the weather, by which this wind was occasioned, and its degree of strength determined, have been different from what it actually was; and the previous state by which this particular weather was determined,—and so on; and thus you have, without stay or limit, a wholly different temperature of the air from that which really existed, and a different constitution of the bodies which possess an influence over this temperature, and over which, on the other hand, it exercises such an influence. On the fruitfulness or unfruitfulness of countries, and through that, or even directly, on the duration of human life,—this temperature exercises a most decided influence. How can you know,—since it is not permitted us to penetrate the arcana of Nature, and it is therefore allowable to speak of possibilities,—how can you know, that in such a state of weather as may have been necessary to carry this grain of sand a few paces further inland, some one of your forefathers might not have perished from hunger, or cold, or heat, before begetting that son from whom you are descended; and that thus you might never have been at all, and all that you have ever done, and all that you ever hope to do in this world, must have been obstructed, in order that a grain of sand might lie in a different place?
I myself, with all that I call mine, am a link in this chain of the rigid necessity of Nature. There was a time—so others tell me who were then alive, and I am compelled by reasoning to admit such a time of which I have no immediate consciousness,—there was a time in which I was not, and a moment in which I began to be. I then only existed for others,—not yet for myself. Since then, my self, my self-consciousness, has gradually unfolded itself, and I have discovered in myself certain capacities and faculties, wants and natural desires. I am a definite creature, which came into being at a certain time.
I have not come into being by my own power. It would be the highest absurdity to suppose that I was before I came into existence, in order to bring myself into existence. I have, then, been called into being by another power beyond myself. And by what power but the universal power of Nature, since I too am a part of Nature? The time at which my existence commenced, and the attributes with which I came into being, were determined by this universal power of Nature; and all the forms under which these inborn attributes have since manifested themselves, and will manifest themselves as long as I have a being, are determined by the same power. It was impossible that, instead of me, another should have come into existence;—it is impossible that this being, once here, should at any moment of its existence be other than what it is and will be.
That my successive states of being have been accompanied by consciousness, and that some of them, such as thoughts, resolutions, and the like, appear to be nothing but varied modes of consciousness, need not perplex my reasonings. It is the natural constitution of the plant to develope itself, of the animal to move, of man to think,—all after fixed laws. Why should I hesitate to acknowledge the last as an original power of Nature, as well as the first and second? Nothing could hinder me from doing so, but surprise; thought being assuredly a far higher and more subtle operation of Nature, than the formation of a plant or the proper motion of an animal. But how can I accord to such a feeling any influence whatever upon the calm conclusions of reason? I cannot indeed explain how the power of Nature can produce thought; but can I better explain its operation in the formation of a plant, or in the motion of an animal? To attempt to deduce thought from any mere combination of matter, is an extravagance into which I shall not fall; but can I explain from it even the formation of the simplest moss? Those original powers of Nature cannot be explained, for it is only by them that we can explain everything which is susceptible of explanation. Thought exists,—its existence is absolute and independent; just as the formative power of Nature exists absolutely and independently. It is in Nature; for the thinking being arises and developes himself according to the laws of Nature; therefore thought exists through Nature. There is in Nature an original thinking-power, as there is an original formative-power.
This original thinking-power of the Universe proceeds and developes itself in all possible modes of which it is capable, as the other original forces of Nature go forth and assume all possible forms. I, like the plant, am a particular mode or manifestation of the formative-power; like the animal, a particular mode or manifestation of the power of motion; and besides these I am also a particular mode or manifestation of the thinking-power; and the union of these three original powers into one,—into one harmonious development,—is the distinguishing characteristic of my species, as it is the distinguishing characteristic of the plant species to be merely a mode or manifestation of the plant-forming power.
Figure, motion, thought, in me, are not dependent on each other, and consequent on each other;—so that I think, and thereby conceive of the forms and motions of surrounding objects in such or such a manner, because they are so; or on the other hand, that they are so, because I so conceive of them;—but they are all simultaneous and harmonious developments of one and the same power, the manifestation of which necessarily assumes the form of a complete creature of my species, and which may thus be called the man-forming power. A thought arises within me absolutely, without dependence on anything else; the corresponding form likewise appears absolutely, and also the motion which corresponds to both. I am not what I am, because I think so, or will so; nor do I think and will it, because I am so; but I am, and I think, both absolutely;—both harmonize with each other by virtue of a higher cause.
As surely as those original powers of Nature exist for themselves, and have their own internal laws and purposes, so surely must their outward manifestations, if they are left to themselves and not suppressed by any foreign force, endure for a certain period of time, and describe a certain circle of change. That which disappears even at the moment of its production is assuredly not the manifestation of one primordial power, but only a consequence of the combined operation of various powers. The plant, a particular mode or manifestation of the formative-power of Nature, when left to itself, proceeds from the first germination to the ripening of the seed. Man, a particular mode or manifestation of all the powers of Nature in their union, when left to himself, proceeds from birth to death in old age. Hence, the duration of the life of plants and of men, and the varied modes of this life.
This form, this proper motion, this thought, in harmony with each other,—this duration of all these essential qualities, amidst many non-essential changes, belong to me in so far as I am a being of my species. But the man-forming power of Nature had already displayed itself before I existed under a multitude of outward conditions and circumstances. These outward circumstances have determined the particular manner of its present activity, which has resulted in the production of precisely such an individual of my species as I am. The same circumstances can never return; unless the whole system of Nature should retrograde, and two Natures arise instead of one; hence the same individuals, who have once existed, can never again come into actual being. Further, the man-forming power of Nature manifests itself, during the same time in which I exist, under all the conditions and circumstances possible in that time. But no combination of such circumstances can perfectly resemble those through which I came into existence, unless the universe could divide itself into two perfectly similar but independent worlds. It is impossible that two perfectly similar individuals can come into actual existence at the same time. I am that which the man-forming power of Nature—having been